Telemann, Georg Philipp (gāˈôrk fēˈlĭp tĕlˈəmän) [key], 1681–1767, German composer. From 1721 until his death he was director of music for the five major churches in Hamburg. Extremely prolific, he composed scores of overtures, 40 operas, 12 complete services for the year, and other works in practically every form. Although he was highly regarded in his day, his reputation later declined because he was not an innovator; by the mid-20th cent., however, his critical reputation was again on the rise. Telemann is a major representative of the Hamburg school of the early 18th cent. A mixture of counterpoint and Italian operatic air forms his style. One of his best-known works is the oratorio entitled Der Tag des Gerichts [the day of judgment] (1762).